Wallin L, Boesby S, Madsen T
Scand J Clin Lab Invest. 1978 Jun;38(4):375-81. doi: 10.3109/00365517809108437.
Basal gastro-oesophageal sphincter pressures and peak peristaltic pressure amplitudes in the oesophageal body 5 and 15 cm proximal to the gastro-oesophageal sphincter were measured with three different set ups in six healthy volunteers. The in situ tip-transducer measurements were compared to two different external pressure transducers in a perfused catheter system and to an external pressure transducer in a non-perfused catheter system. The in situ tip-transducer recorded higher sphincter pressures and peristaltic amplitudes than those recorded by the perfused and non-perfused systems (P less than 0.01). There was no difference between the pressures recorded by perfused systems in conjunction with the different external transducers. The perfused systems recorded sphincter pressures higher than those recorded by the non-perfused systems (P less than 0.02 and P less than 0.01), whereas the non-perfused system recorded higher peristaltic pressure amplitudes than those recorded by the perfused systems (P less 0.01 and P less than 0.01). The importance of the bend of the in situ tip-transducer was shown experimentally. It is concluded that the ideal system for recording oesophageal pressures is a perfused catheter set-up with minimal compliance. The probe with three side holes at the same level ensures registrations of the lowest occlusion pressure at the measuring point.
在六名健康志愿者中，使用三种不同的装置测量了胃食管括约肌基础压力以及食管体部在胃食管括约肌近端5厘米和15厘米处的蠕动峰值压力幅度。将原位尖端传感器测量结果与灌注导管系统中的两种不同外部压力传感器以及非灌注导管系统中的一种外部压力传感器进行了比较。原位尖端传感器记录的括约肌压力和蠕动幅度高于灌注和非灌注系统记录的结果（P<0.01）。不同外部传感器与灌注系统结合记录的压力之间没有差异。灌注系统记录的括约肌压力高于非灌注系统记录的结果（P<0.02和P<0.01），而非灌注系统记录的蠕动压力幅度高于灌注系统记录的结果（P<0.01和P<0.01）。实验证明了原位尖端传感器弯曲的重要性。得出的结论是，记录食管压力的理想系统是具有最小顺应性的灌注导管设置。在同一水平具有三个侧孔的探头可确保在测量点记录到最低的闭塞压力。
